Justin Beaver is the name given to the beaver to parody Justin Bieber in PewDiePie's Let's Play of Scribblenauts Unlimited. He first appeared in episode twelve of Scribblenauts Unlimited.
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HORSE AND JUSTIN BEAVER ON NEW ADVENTURES! - Scribblenauts: Unlimited - Part 12
HORSE AND JUSTIN BEAVER ON NEW ADVENTURES! - Scribblenauts Unlimited - Part 12
First Appearance of Justin Beaver